where 90*<180*
find the values of h (leave ans in surd form)
2.if sinX and cosX are the two roots of equation kx^2-4x+3=0
find the possible values of k
寫明點做點解
急要!
邊個第一個答到有20分!
我計左唔知幾耐了
都係計唔出
更新1:
1. if cosX and cosecX are the two roots of the equation 3x^2+hx-1=0 where 90*
更新2:
1. if cosX and cosecX are the two roots of the equation 3x^2+hx-1=0 where 180度大過X度大過90度 find the values of h (leave ans in surd form)
更新3:
錯!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 比埋兩條ans 第一係 -7/開方根10 第二係 -8
更新4:
你要留意X係180度之內 90度之外
更新5:
多謝你提左我有個PRODUCT OF ROOTS 我而家識計啦 我地個個呀SIR未教PRODUCT & SUM OF ROOTS 所以我唔識 好彩你提左我 如果唔係我真係訓唔到教 唔該晒! 個X係180度-71.57度